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7 votes

Clifford algebra non-zero

Extremely long answer: The Clifford algebra and the Chevalley map - a computational approach Theorem 1 (or 2, or even 3). Actually the reason for writing this text was my disappointment with the wrong …
darij grinberg's user avatar
6 votes
Accepted

Clifford PBW theorem for quadratic form

If someone could check the below I'd be very indebted. Found the counterexample (to Question 1 and thus also to Question 2). It is inspired by the counterexample to ring-theoretical PBW in P. M. Cohn …
darij grinberg's user avatar
2 votes

Invariant space of lifted Chevalley automorphisms of the tensor algebra

Why doesn't ARupinski's answer get more votes? Anyway I think I've just found a simpler answer to my question, and I am writing it here in case someone might have another use for the trick. Let $\le …
darij grinberg's user avatar